thank you for quick response. When I clicked your link it took me to https://www.axcrypt.net/ (I think you may have missed the s). I then clicked login and used my email account and my password for axantum.com. That opened up page https://account.axcrypt.net/en with details of my account; see attachment.
I then went to android app entered email and carefully entered the same password used for axantum.com on the laptop. Result as before password error message.
A clarification regarding 2 passwords. I have saved a separate password to use each time I encrypt / decrypt a file using Axcrypt; i.e. 1 to login to account and 1 to encrypt files.